An experimental device to elicit soical networks
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Universidad de Granada. Departamento de Teoría e Historia Económica
Brañas-Garza, P. An experimental device to elicit soical networks. Universidad de Granada. Departamento de Teoría e Historia Económica (2005). (The Papers; 05/19). [http://hdl.handle.net/10481/31480]
SponsorshipPablo Brañas-Garza acknowledges financial support from CICYT-SEJ 2004-07554/ECON and Fundación Ramón Areces. Natalia Jiménez acknowledges financial support by the Generalitat Valenciana under the project CTBPRB/2003/71. Pablo Brañas-Garza, Ramón Cobo-Reyes and Natalia Jiménez acknowledge financial support by Centro de Estudios Andaluces I+D 2006.
This paper proposes an original mechanism to elicit latent social net- works. Subjects are invited to reve al their friends’ name and surname, together with a score measuring the strength of relationship. According to the mechanism, subjects are rewarded of a fi xed price either a) when they do not name anybody or b) when the scores of a randomly selected (bidirectional) link are su ffi ciently close. We test the mechanism’s perfor- mance in the fi eld. Our main results are: i) a very large percentage of links (75%) were corresponded. ii) the mechanism largely captures strong friendship relations and practically ignores weak relations. A simple model of friend—regarding preferences is developed to explain this evidence.